
\begin{table}[htb]
\caption{Robustness check: Table F2 with alternative operationalisation of political ideology}
\begin{center}
\begin{tabular}{l c c c}
\hline
 & Experiment 1 & Experiment 2 & Experiment 3 \\
\hline
Citizens                               & $2.44^{*}$        & $-1.73^{*}$       & $3.29^{*}$        \\
                                       & $ [ 2.08;  2.83]$ & $ [-2.30; -1.18]$ & $ [ 2.86;  3.71]$ \\
Benefits                               &                   & $4.22^{*}$        &                   \\
                                       &                   & $ [ 3.59;  4.79]$ &                   \\
Citizens $\times$ Benefits             &                   & $2.04^{*}$        &                   \\
                                       &                   & $ [ 1.25;  2.89]$ &                   \\
Left-Conservative                      & $0.35$            & $-0.80$           & $0.67$            \\
                                       & $ [-1.11;  1.73]$ & $ [-2.23;  0.45]$ & $ [-0.65;  2.12]$ \\
Right-Liberal                          & $2.80^{*}$        & $1.53^{*}$        & $2.20^{*}$        \\
                                       & $ [ 2.13;  3.44]$ & $ [ 0.62;  2.54]$ & $ [ 1.48;  2.91]$ \\
Right-Conservative                     & $1.50^{*}$        & $0.67$            & $1.93^{*}$        \\
                                       & $ [ 0.97;  2.00]$ & $ [-0.21;  1.50]$ & $ [ 1.45;  2.45]$ \\
Population $\times$ Left-Cons          & $-0.32$           & $2.28^{*}$        & $-1.36$           \\
                                       & $ [-2.01;  1.34]$ & $ [ 0.29;  4.38]$ & $ [-3.13;  0.24]$ \\
Population $\times$ Right-Lib          & $-2.97^{*}$       & $0.39$            & $-1.71^{*}$       \\
                                       & $ [-3.75; -2.19]$ & $ [-0.87;  1.69]$ & $ [-2.56; -0.86]$ \\
Population $\times$ Right-Cons         & $-1.64^{*}$       & $0.87$            & $-1.88^{*}$       \\
                                       & $ [-2.30; -1.02]$ & $ [-0.18;  1.99]$ & $ [-2.58; -1.20]$ \\
Benefits $\times$ Left-Cons            &                   & $2.09^{*}$        &                   \\
                                       &                   & $ [ 0.73;  3.51]$ &                   \\
Benefits $\times$ Right-Lib            &                   & $-0.52$           &                   \\
                                       &                   & $ [-1.65;  0.68]$ &                   \\
Benefits $\times$ Right-Cons           &                   & $0.18$            &                   \\
                                       &                   & $ [-0.80;  1.12]$ &                   \\
Citizens $\times$ Benefits $\times$ LC &                   & $-3.01^{*}$       &                   \\
                                       &                   & $ [-5.24; -0.78]$ &                   \\
Citizens $\times$ Benefits $\times$ RL &                   & $-0.94$           &                   \\
                                       &                   & $ [-2.55;  0.74]$ &                   \\
Citizens $\times$ Benefits $\times$ RC &                   & $-1.41^{*}$       &                   \\
                                       &                   & $ [-2.74; -0.10]$ &                   \\
Intercept                              & $4.19^{*}$        & $3.18^{*}$        & $2.74^{*}$        \\
                                       & $ [ 3.86;  4.49]$ & $ [ 2.74;  3.67]$ & $ [ 2.43;  3.07]$ \\
\hline
N                                      & $919$             & $911$             & $820$             \\
\hline
\multicolumn{4}{l}{\scriptsize{\parbox{0.85\linewidth}{$^*$ Null hypothesis value outside the 95\% confidence interval. Entries are unstandardized coefficients from a linear mixed-effect regression model. Bootstrapped confidence intervals in parentheses. Countries function as groups. Support for PTAs is captured on an 11-point scale.}}}
\end{tabular}
\label{tab:tableH2}
\end{center}
\end{table}
